KR102012963B1 - Golf swing coaching system and coaching method using the flexible sensor - Google Patents

Abstract

A golf swing coaching system is provided. The golf swing coaching system comprises: a joint sensor having elasticity and attached to a predetermined joint for sensing the movement of the joint; a gyro sensor module sensing a swing trajectory and a swing motion of golf; a repeater receiving information on a movement angle of the joint sensed from the joint sensor at a predetermined time point, and transmitting the information to the outside; and a user terminal receiving a value for the movement angle from the repeater and comparing the movement angle with a preset reference angle to provide coaching information for coaching the movement of the joint with respect to a golf swing.

Description

GOLF SWING COACHING SYSTEM AND COACHING METHOD USING THE FLEXIBLE SENSOR}

The present invention relates to a golf swing coaching system and a golf swing coaching method, and more particularly, to a golf swing coaching system and a golf swing coaching method using an elastic sensor.

Golf swing is a motion that includes a large number of joints and movements in various directions. In order to accurately measure and evaluate the motion in three dimensions, a large number of high resolution motion capture cameras and expensive software are required.

However, recent developments of small acceleration sensors and gyro sensors can easily detect the characteristics of the human body's movement without installing a lot of additional equipment, which is being used in sports and medical. The use of these devices costs extra space or expense. Or, you can check the data related to the individual's movement by yourself without any time and place constraints.

Among the existing technologies, there are inventions for analyzing and evaluating swing motions using acceleration sensors or gyro sensors, but these inventions are designed to track only the club or hand movements, which are the end result of the swing, so that a certain swing pattern must be accurately repeated. There is a limit to providing information for correcting the basic framework of the swing in the golf swing exercise.

Therefore, through the development of a small, lightweight and flexible sensor to be attached to the segment of the human body, a motion analysis that comprehensively analyzes the motion state by measuring specific joint movements such as joint movement or joint angle of the human body during golf swing System needed.

Korea Patent Publication No. 10-1509129 Korean Patent Publication No. 10-2012-0113945

The problem to be solved by the present invention is to provide a golf coaching system and coaching method that can sense the detailed movement of the joint and coach the golf swing using it.

An object of the present invention is to provide a golf coaching system and a coaching method for sensing a joint motion for a specific point of time of the golf swing and apply it to golf coaching.

An object of the present invention is to provide a golf coaching system and coaching method capable of receiving voice coaching for joint motion in real time.

According to an embodiment of the present invention, a golf swing coaching system is provided. The golf swing coaching system has an elasticity and a joint sensor attached to a predetermined joint to sense the movement of the joint; A gyro sensor module for sensing a swing trajectory and a swing motion of a golf; A repeater for receiving information on a movement angle of a joint sensed from the joint sensor at a predetermined time point and transmitting the received information to the outside; The user terminal may receive a value for the movement angle from the repeater and compare the movement angle with a preset reference angle to provide coaching information for coaching the movement of the joint to the golf swing.

In addition, according to another embodiment of the present invention, there is provided a coaching method of the golf swing coaching system having a stretchable, including a joint sensor attached to a predetermined joint to sense the movement of the joint. The coaching method may further include: sensing a movement angle of the joint in the joint sensor at a predetermined time point; Receiving the sensed movement angle; Determining whether the movement angle deviates from a preset allowable range from a preset reference angle; As a result of the determination, when the movement angle is out of the allowable range, the method may include a voice output of a coaching comment about the joint that is out of the allowable range.

According to an embodiment of the present invention, there is provided a golf coaching system and coaching method that can sense the detailed movement of the joint and coach the golf swing using the same.

According to an embodiment of the present invention, a golf coaching system and a coaching method are provided that sense joint motion for a particular point in time of a golf swing and apply it to golf coaching.

According to one embodiment of the present invention, there is provided a golf coaching system and coaching method that can receive voice coaching for joint motion in real time.

1 is a control block diagram of a golf swing coaching system according to an embodiment of the present invention,
2 is a view illustrating a state in which a joint sensor and a gyro sensor module are attached to a user according to an embodiment of the present invention;
3 is a view for explaining a reference time point and a joint angle corresponding to the golf swing according to an embodiment of the present invention,
4 is a control flowchart illustrating a golf swing coaching method according to an embodiment of the present invention;
5 is a control block diagram of a golf swing coaching system according to another embodiment of the present invention,
6 is a control block diagram of a golf swing coaching system according to another embodiment of the present invention,
7 illustrates a computing device, in accordance with an embodiment of the invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

In this specification, duplicate descriptions of the same components are omitted.

Also, in the present specification, when a component is referred to as being 'connected' or 'connected' to another component, the component may be directly connected to or connected to the other component, but in between It will be understood that may exist. On the other hand, in the present specification, when a component is referred to as 'directly connected' or 'directly connected' to another component, it should be understood that there is no other component in between.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Also, in this specification, the singular forms may include the plural forms unless the context clearly indicates otherwise.

Also, as used herein, the term 'comprises' or 'having' is only intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more. It is to be understood that it does not exclude in advance the possibility of the presence or addition of other features, numbers, steps, actions, components, parts or combinations thereof.

Also in this specification, the term 'and / or' includes any combination of the plurality of listed items or any of the plurality of listed items. In the present specification, 'A or B' may include 'A', 'B', or 'both A and B'.

Also, in the present specification, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted.

1 is a control block diagram of a golf swing coaching system according to an embodiment of the present invention.

As shown, the golf swing coaching system according to the present embodiment may include a joint sensor 10, a gyro sensor module 20, a repeater 30, and a user terminal 40. Golf swing coaching system includes an elastic sensor attached to the human body in addition to the existing gyro sensor module 20, it is possible to more accurately measure the movement of the joint during the golf swing. The joint sensor 10 is a sensor newly developed to track the movement of an object and particularly measure the angle of movement of the joint. The joint sensor 10 eliminates inconvenience of wearing and attaching a sensor using a material having existing rigid characteristics. Can be. In addition, the information about the measured joint movement can be utilized for posture correction in the golf swing. That is, the joint sensor 10 may provide sensing information that can be attached to a segment of the human body, which is small and light, and which can comprehensively analyze the state of movement.

The joint sensor 10 is attached to a predetermined joint to sense the movement of the joint. The joint sensor 10 may include an elbow sensor 11 attached to the elbow to measure the movement angle of the elbow, and a knee sensor 13 attached to the knee to measure the movement angle of the knee.

The sensed elbow angle refers to the angle between a straight line connecting the shoulder joint center point and the elbow joint center point and a straight line connecting the elbow joint center point and the wrist joint center point. In addition, the angle of the knee refers to the angle between a straight line connecting the hip joint center point and the knee joint center point and a straight line connecting the knee joint center point and the ankle joint center point.

As a result of comparative analysis with a 3D image using a camera to analyze the accuracy of the joint sensor 10, the joint sensor 10 showed high measurement accuracy. Table 1 and Table 2 below is a table comparing the joint angle of the joint sensor and the three-dimensional motion sensor according to the present embodiment.

Elbow joint 3D motion analysis Joint sensor Angle maximum 170.3 ° 171.3 ° at least 78.0 ° 83.8 ° Range of motion 92.3 ° 87.5 °

Knee joint 3D motion analysis Joint sensor Angle maximum 175.9 ° 176.3 ° at least 86.2 ° 68.0 ° Range of motion 89.7 ° 108.4 °

As shown in the table, in the case of the elbow sensor 11, the angle of the joint according to the elbow joint movement can be measured from at least 83.8 degrees to 171.3 degrees, so that the joint angle according to the three-dimensional motion analysis is hardly different. The measurement accuracy (%) of the elbow sensor 11 is about 95.59 ± 3.49.

The joint angle that can be measured by the knee sensor 13 is at least 68 degrees to 176.3 degrees, and the measurement accuracy (%) is about 85.94 ± 11.98 when compared to the three-dimensional motion analysis.

2 is a view illustrating a state in which a joint sensor and a gyro sensor module are attached to a user according to an embodiment of the present invention.

As shown, the elbow sensor 11 may be implemented in a toshi shape attached to the arm, the knee sensor 13 may also be implemented as a structure that can be worn on the human body, such as knee protectors.

According to this embodiment, the gyro sensor module 20 may be attached to the grip of the golf club. The gyro sensor module 20 may be implemented as a 9-axis sensor including a gyro sensor 21, an acceleration sensor 23, and an angular velocity sensor 25, and may sense a swing trajectory and a swing motion of a golf.

The gyro sensor module 20 performs motion correction through an algorithm using an existing sensing value of the gyro sensor 21 with respect to the acceleration component due to the movement detected by the acceleration sensor 23 and the acceleration component due to gravity. Only the acceleration component can be calculated and additional algorithms can be used to calculate the displacement and velocity of the sensor attachment site. The angular velocity sensing value detected by the gyro sensor 21 is corrected by using an existing algorithm, and the azimuth and angular acceleration are additionally calculated in addition to the angular velocity of the sensor attachment portion to generate three-dimensional positional data of the attachment portion. In addition, azimuth related data can be obtained.

In addition, the acceleration value, the angular velocity value, the speed of the golf swing motion, etc. sensed by the gyro sensor module 20 may be used to determine a reference time point to be described later.

3 is a diagram illustrating a reference time point of a golf swing and a joint angle corresponding thereto according to an embodiment of the present invention.

As shown, the joint sensor 10 according to the present embodiment may sense the angle of the joint in response to a preset reference time point.

The reference time point may be set to an address, a back swing top, an impact point, and a finish time point, which may be important points of the joint movement during the drive swing motion or the iron swing motion.

In the case of the address point of time, since the swing starts, the acceleration and the speed sensed by the gyro sensor module 20 may be set to a point below a predetermined value, that is, the point of no motion. Also, when the address time point is set, the joint angle values for wrist-left, elbow-left / right, knee-left / right may be further considered.

In the case of the back swing top, since the golf club is horizontally stopped at the ground after the address time, it can be set based on the swing trajectory, acceleration and angular velocity values. Also, when the backswing top viewpoint is set, the joint angle values for the wrist-left, elbow-left / right, and knee-left / right may be further considered.

The impact point is the moment when the user hits the golf ball and is almost instantaneous with the angle of the golf club stored at the address, and the acceleration is expected to be the highest point, and thus can be set based on the golf club's angle and acceleration. When the impact point is set, the joint angle values for wrist-left, elbow-left / right, knee-left / right may be additionally considered.

Lastly, the finish point is a moment after the swing ends and can be set using the acceleration value and the gyro value, that is, the angular velocity value. Of course, when the finish time point is set, the joint angle values for the wrist-left, elbow-left / right, knee-left / right may be further considered.

Each joint angle, joint range and angular velocity are also measured in response to backswing between address and backswing top, downswing between backswing top and impact, and follow-through between impact and finish. Can be.

Reference joint angles for each reference time point of FIG. 3 may be divided into professional grades, semi-professional grades, amateur grades, and the like, and may be set through an elastic sensor and three-dimensional motion analysis by golfers corresponding to each standard. .

As shown, the angle of the left elbow at the address point of view may be set to 176 degrees, the angle of the right elbow to 167 degrees, the angle of the left knee at 131 degrees, the angle of the right knee at 154 degrees may be set at the backswing top. have. In addition, the angle of each joint for each reference time point may be set to a range having a constant width rather than a specific value. The width of the reference angle may be the same for each reference time point or may be set differently.

In addition, according to the present invention, if the joint sensor is attached to the wrist in addition to the elbow and the knee, the reference angle for the wrist joint may be set.

According to the present invention, although not shown, the joint sensor 10 and the gyro sensor module 20 may include a communication unit capable of wireless communication such as Bluetooth, WiFi, zigbee, 2.4 GHz RF communication, and sensing through such communication unit. The motion information for one joint may be transmitted to the repeater 30.

In addition, according to another embodiment of the present invention, the gyro sensor that can specify the angular velocity, that is, the gyro value of the elbow and knee, in addition to the elastic sensor for measuring the angle of the joint may be merged. In this case, the gyro value merged into the joint sensor 10 may be used as complementary data for setting a reference viewpoint together with the gyro value of the gyro sensor 21 attached to the golf club grip.

The repeater 30 may receive the information on the angle of movement of the joint sensed from the joint sensor 10 in correspondence at the above-described reference time point and transmit it to the outside. According to the present embodiment, the repeater 30 may transmit information on the movement angle of the joint to the user terminal 40 such as a portable telephone or a kiosk.

The repeater 30 may perform 2.4 GHz RF communication with the joint sensor 10 and the gyro sensor module 20, and perform wired or wireless communication, for example, USB communication, with the user terminal 40.

The user terminal 40 may receive a value for the movement angle of the joint from the repeater 30, and provide coaching information for coaching the movement of the joint to the golf swing by comparing the movement angle with a preset reference angle. have.

The user terminal 40 may be implemented as a computer such as a portable telephone, a tablet PC, a desktop, or the like, or may be implemented as a kiosk as shown in FIG. 1.

Kiosk refers to an unmanned terminal installed in a public place so that the public can easily use it through the unmanned and automated operation of information service business, and provides efficient information to users such as voice service and video implementation including advanced multimedia configuration such as graphics and communication cards. Can provide. In this embodiment, it receives the joint information on the golf swing of the user and serves to provide appropriate coaching information in voice or image correspondingly.

The user terminal 40 may include a communication unit (not shown), a storage unit, a user interface, and a control module controlling the provision of coaching information by controlling them.

The communication unit may directly or indirectly communicate with the repeater 30 and each sensor, and in some cases, may communicate with an external server.

The storage unit stores information about the reference time point shown in the table of FIG. 3, information about angles of joints that can be a reference point at the reference time point, and joint movement range. The reference angle may be set in plural numbers depending on the user's ability level, for example, a professional golfer or an amateur golfer, and may be set differently according to the gender or age of the user.

In addition, the storage unit stores coaching information to be provided to the user when the joint angle input from the user is out of a predetermined range from the reference angle. The coaching information may be a simple beep sound or voice information for describing a specific operation. In addition, it may be various swing trajectories that may be displayed on the display unit, or may be various images that the user can visually recognize.

The user interface may include a speaker for outputting a sound such as a voice and a beep sound, and a display unit for outputting an image to a user. In addition, the user interface may include an input unit through which a user may view an output image and input or change predetermined information, which may be implemented as a keyboard, a touch screen, a touch pad, or the like.

The control module of the user terminal 40 may control the storage unit and the user interface unit to provide coaching information for coaching the movement of the joint with respect to the golf swing by comparing the received movement angle of the joint with a preset reference angle. .

The control module according to the present embodiment may feed back coaching information for swing posture correction when the angle of the sensed joint in the swing motion of the user deviates from ± 5 degrees from the reference angle. Alternatively, the coaching information may be provided to the user if it is out of 5% or 10% of the reference angle other than a specific value.

In the case of the voice coaching comment provided to the user, it may be "turn the right knee further to the right" or "spread the left arm further", "bend the knee further", and the like. The user terminal 40 not only corrects the swing posture in the coaching information but also has a good swing, for example, "swing is perfect ~" or "upgrade the swing stage from the amateur stage to the pro stage ~". You can also give it.

Such coaching information may be output in real time when the user completes one swing, and a comprehensive swing coaching comment may be output after a predetermined number of times.

In addition, the data about the angle and the golf swing sensed at each time point is stored as a numerical value, which may be provided to the user in a graph or table. In addition, the user interface may process the stored data into graphs or tables on a daily, weekly or monthly basis and provide the data to the user.

Alternatively, according to another embodiment of the present invention, the user terminal 40 may receive coaching information for the golf swing while communicating with an external server. In this case, the reference angle data and the coaching information of the storage unit described above may not be stored. When using an external server, it is possible to use big data for a golf swing, through which a more diverse and accurate coaching information can be provided to the user.

The swing coaching information provided by the user terminal 40 may be performed in an application operating in a device, and may be implemented in a certain platform, for example, an application that may be executed in an Android module.

4 is a control flowchart illustrating a golf swing coaching method according to an embodiment of the present invention. Referring to Figure 4 summarizes the golf swing coaching method according to the embodiment as follows.

First, an elastic joint sensor is attached to each joint, that is, the elbow and the knee, and a gyro sensor module is attached to the grip of the golf club (410).

Additionally, a stretch sensor may be attached to the wrist. Each joint sensor senses the angle of the joint according to the user's golf swing, and when the gyro sensor is merged into the joint sensor, the angular velocity may be measured according to the golf swing.

When the sensor is attached to the user, each sensor may transmit a signal indicating that the swing start and sensor information can be input to the user terminal through the repeater. The user terminal may output a signal indicating that reception of the sensed data is possible through a beep or flashing light.

When the attachment of the sensor is completed, the user may make a swing composed of an address, a back swing top, an impact, and a finish, and the angle of the joint by the joint sensor may be sensed at each preset reference time (420). Of course, it is also possible to measure the swing trajectory and acceleration by the gyro sensor module.

Data about the sensed angle and acceleration may be provided to the user terminal through a repeater, and the movement angle and swing trajectory of the joint may be analyzed in the user terminal (430).

The control module of the user terminal may determine whether the movement angle of the joint deviates from the preset allowable range from the preset reference angle. As described above, the reference angle may be set to a constant value or a range, and the allowable range may also be set to a specific value or a specific range. In addition, the reference angle and the allowable range may be set in plural numbers according to the age, gender, and golf ability of the user.

As a result of the determination, when the movement angle of the joint is out of the allowable range, the control module may output a coaching comment about the joint out of the allowable range as coaching information such as voice (440).

Coaching information provided from the user terminal may be implemented by voice or graphic, and a user interface for receiving user feedback may be provided.

5 is a control block diagram of a golf swing coaching system according to another embodiment of the present invention.

As shown, the joint sensor 10 of the golf swing coaching system according to the present embodiment may further include a wrist sensor 15 for measuring the movement of the wrist joint.

Wrist sensor 15 may be attached only to the front and back of both wrists, and may be attached to the palm, back of the hand, thumb and pinkie to measure more specific joint movement.

When the wrist sensor 15 is attached only to the front and back of the wrist, the angle of the wrist is sensed, and when the wrist sensor 15 is attached to the palm, the back of the hand, the thumb, and the little finger, the long side flexion, the back flexion, the right flexion and the spinal flexion of the wrist joint are Can be sensed. Specifically, the angle at which the wrist is folded means an angle between a straight line connecting the elbow joint center point and the wrist joint center point and a straight line connecting the wrist joint center point and the third finger center point.

As described above, according to the present exemplary embodiment, by measuring a specific joint angle of the wrist, which cannot be measured previously, the angular motion variable of the wrist joint can be calculated. That is, the wrist sensor 15 may sense the angles of the four directions of the wrist joint to more specifically coach the operation of the address, the back swing top, the impact, and the finish point.

In addition, according to the present embodiment, the gyro sensor module 27 may be merged into the wrist sensor 15. When the wrist sensor 15 is implemented as a glove including an elastic sensor for measuring the angle of the joint, the gyro sensor module 27 may be mounted on the back of the hand of the glove. In this case, the stretchable sensor and the gyro sensor module 27 may transmit sensing information to the outside through one communication unit.

Of course, the gyro sensor module 27 may be attached to the golf club grip rather than the wrist sensor 15 as in the above-described embodiment. This may vary depending on the ease of implementation.

6 is a control block diagram of a golf swing coaching system according to another embodiment of the present invention.

As shown, the golf swing coaching system is attached to a predetermined joint joint sensor 10 for sensing the movement of the joint, the gyro sensor module 20 and the user terminal 40 for sensing the swing trajectory and swing motion of the golf It can be configured as.

According to the present exemplary embodiment, the user terminal 40 receives information on the movement angle of the sensed joint from the joint sensor 10 at a preset time point without a repeater in the middle, and sets the movement angle to the preset reference angle. In comparison, coaching information for coaching the motion of the joint relative to the golf swing may be provided to the user.

That is, since the joint sensor 10 and the gyro sensor module 20 and the user terminal 40 can perform direct communication, the golf swing coaching system becomes simpler, and the user does not have to carry a repeater. For example, coaching information about a golf swing can be obtained more conveniently.

The joint sensor 10 may include only the elbow sensor 11 and the knee sensor 13 as shown, and may further include a wrist sensor.

Additional wrist sensors may be attached only to the front and back of the user's wrist, and attached to the front and back of the user's elbow, front and rear of the knee, and to the palms, back of the hand, thumb and pinkie, the elbow movement angle, the knee movement angle, and the long flexion of the wrist joint. , Dorsal flexion, lumbar flexion and chuck flexion can be sensed.

The gyro sensor module 20 according to the present embodiment includes a gyro sensor, an acceleration sensor, and an angular velocity sensor, and is spaced apart from the joint sensor 10 and provided at the golf club grip. Alternatively, it may be merged with a wrist sensor to sense a golf swing trajectory according to a user's wrist movement.

7 illustrates a computing device, in accordance with an embodiment of the invention. The computing device TN100 of FIG. 7 may be a device described herein (eg, a device for a golf swing coaching system, a joint sensor, or a user terminal, etc.).

In the embodiment of FIG. 7, the computing device TN100 may include at least one processor TN110, a transceiver device TN120, and a memory TN130. In addition, the computing device TN100 may further include a storage device TN140, an input interface device TN150, an output interface device TN160, and the like. Components included in the computing device TN100 may be connected by a bus TN170 to communicate with each other.

The processor TN110 may execute a program command stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to an embodiment of the present invention are performed. The processor TN110 may be configured to implement the procedures, functions, methods, and the like described in connection with an embodiment of the present invention. The processor TN110 may control each component of the computing device TN100.

Each of the memory TN130 and the storage device TN140 may store various information related to an operation of the processor TN110. Each of the memory TN130 and the storage device TN140 may be configured of at least one of a volatile storage medium and a nonvolatile storage medium. For example, the memory TN130 may be configured as at least one of a read only memory (ROM) and a random access memory (RAM).

The transceiver TN120 may transmit or receive a wired signal or a wireless signal. The transceiver TN120 may be connected to a network to perform communication.

On the other hand, the embodiment of the present invention is not implemented only through the apparatus and / or method described so far, but may be implemented through a program that realizes a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Such implementations can be readily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the invention.

Claims (12)

In the golf swing coaching system,
A joint sensor having elasticity and attached to a predetermined joint to sense movement of the joint;
A gyro sensor module attached to the golf club and sensing a swing trajectory and a swing motion of the golf;
A repeater for receiving information on a movement angle of a joint sensed from the joint sensor at a predetermined time point and transmitting the received information to the outside;
Receiving a value for the movement angle from the repeater, and comparing the movement angle with a predetermined reference angle to the user terminal for providing coaching information for coaching the movement of the joint to the golf swing,
The predetermined time point is an address time point at which the golf swing starts, a backswing top time point at which the golf club becomes horizontal to the ground after the address time point, an impact time point at which the golf club contacts the golf ball after the back swing top time point, and the impact point. And a finish time point at which the golf swing ends after the time point,
The address time point, the back swing top time point, the impact time point and the finish time point are set based on the acceleration and the speed of the golf club obtained from the gyro sensor module.
The predetermined reference angle is a golf swing coaching system, characterized in that set to be divided into professional, semi-professional, and amateur class. The method of claim 1,
The joint sensor is attached to the elbow and knee of the user,
Golf swing coaching system for sensing the movement angle of the elbow and the movement angle of the knee. The method of claim 1,
The joint sensor is attached to the palm, back of the hand, thumb and pinky,
A golf swing coaching system, characterized by sensing the long flexion, dorsal flexion, lumbar flexion and chuck flexion of the wrist joint. The method of claim 1,
The gyro sensor module is a golf swing coaching system, characterized in that attached to the grip of the golf club. delete delete The method of claim 1,
The user terminal, when the movement angle is out of a predetermined allowable range from the reference angle, the golf swing coaching system, characterized in that for outputting a coaching comment for the joint outside the allowable range. In the golf swing coaching system,
A joint sensor having elasticity and attached to a predetermined joint to sense movement of the joint;
A gyro sensor module attached to the golf club and sensing a swing trajectory and a swing motion of the golf;
Receives information on the movement angle of the sensed joint from the joint sensor at a predetermined time point and provides coaching information for coaching the movement of the joint with respect to the golf swing by comparing the movement angle with a preset reference angle. Including a user terminal,
The predetermined time point is an address time point at which the golf swing starts, a backswing top time point at which the golf club becomes horizontal to the ground after the address time point, an impact time point at which the golf club contacts the golf ball after the back swing top time point, and the impact point. And a finish time point at which the golf swing ends after the time point,
The address time point, the back swing top time point, the impact time point and the finish time point are set based on the acceleration and the speed of the golf club obtained from the gyro sensor module.
The predetermined reference angle is golf swing coaching system, characterized in that is set to be divided into professional, semi-professional, amateur class. The method of claim 8,
The joint sensor is attached to the elbow, knee and palm of the user, the back of the hand, thumb and pinky,
And the elbow movement angle, the knee movement angle, and the wrist flexion, dorsal flexion, lumbar flexion, and chuck flexure. The method of claim 8,
The gyro sensor module is a golf swing coaching system, characterized in that attached to the grip of the golf club. In the coaching method of the golf swing coaching system having elasticity, a joint sensor attached to a predetermined joint to sense the movement of the joint and a gyro sensor module attached to the golf club to sense the swing trajectory and swing motion of the golf,
Sensing a movement angle of a joint in the joint sensor at a preset time;
Receiving the sensed movement angle;
Determining whether the movement angle deviates from a preset allowable range from a preset reference angle;
As a result of the determination, if the movement angle is out of the allowable range, outputting a coaching comment on the joint out of the allowable range by voice;
The predetermined time point is an address time point at which the golf swing starts, a backswing top time point at which the golf club becomes horizontal to the ground after the address time point, an impact time point at which the golf club contacts the golf ball after the back swing top time point, and the impact time point And a finish time point at which the golf swing ends.
The address time point, the back swing top time point, the impact time point and the finish time point are set based on the acceleration and the speed of the golf club obtained from the gyro sensor module.
The predetermined reference angle is golf swing coaching method, characterized in that is set to be divided into professional, semi-professional, amateur class. delete

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